<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>css</title>
    <link rel="stylesheet" href="./css/index.css">
    <script src="./javascript/jquery1.9.1.min.js"></script>
</head>
<body>
    <img src="./images/test.jpg" />
    <script type="text/javascript">
        $(function(){
            console.log("引入jquery");
        });
    </script>
</body>
</html>